Area Code +86-831-(0000000...9999999) located in Yibin, Sichuan (51), more detail is as below. Place International Dialing Code : 86 International Prefix : 00 National Prefix : 0 National Destination Code : 831 Subscriber Number From : 0000000 Subscriber Number To : 9999999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : China Telecom Click here to buy China Area Code DatabaseClick here to buy China Mobile Numbers Other Information Language Code : zh (Chinese) Country Number : 156 (China) Country Code : CN (China) Region Code : 51 Region Name : Sichuan City : Yibin Timezone : Asia/Chongqing Coordinated Universal Time : +08:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : 28.7500 Longitude : 104.6400 ‹ previous : +86-830-(0000000...9999999) next › : +86-832-(0000000...9999999) Dialling Instructions For trunk calls: 0 831 0000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 86 831 0000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 0000000 ~ 9999999 (Count: 10,000,000) Example: +86-831-0000000 / 0086-831-0000000 (0831-0000000 / 0-831-0000000) +86-831-0000001 / 0086-831-0000001 (0831-0000001 / 0-831-0000001) +86-831-0000002 / 0086-831-0000002 (0831-0000002 / 0-831-0000002) +86-831-0000003 / 0086-831-0000003 (0831-0000003 / 0-831-0000003) +86-831-0000004 / 0086-831-0000004 (0831-0000004 / 0-831-0000004) ...+86-831-xxxxxxx / 0086-831-xxxxxxx (0831-xxxxxxx / 0-831-xxxxxxx) ...+86-831-9999995 / 0086-831-9999995 (0831-9999995 / 0-831-9999995) +86-831-9999996 / 0086-831-9999996 (0831-9999996 / 0-831-9999996) +86-831-9999997 / 0086-831-9999997 (0831-9999997 / 0-831-9999997) +86-831-9999998 / 0086-831-9999998 (0831-9999998 / 0-831-9999998) +86-831-9999999 / 0086-831-9999999 (0831-9999999 / 0-831-9999999)